James "Arg" Argent and Gemma Collins take time out of filming TOWIE for a car park clinch

The current series of The Only Way Is Essex has been deluged with shots of kissing castmembers.

But it appears new couple Gemma Collins and James 'Arg' Argent prefer to save their passion for off-camera, given their amorous behaviour in a car park on Sunday.

The pair, who have been dating since June, were spotted all over each other outside the venue for co-star Lucy Mecklenburgh's prom-themed 21st birthday party.

Can't keep my hands off you: James 'Arg' Argent and Gemma Collins enjoy a passionate moment in a car park in Essex

As they hugged and kissed against a car, Gemma's glamorous floor-length gown looked like it was falling off her.

Former car saleswoman Gemma, 31, and wedding singer Arg, 25, were enjoying some time out after a long day filming the series six finale.

The cast had started filming Lucy's 21st – which isn't until this Friday – on Saturday, but it appeared they had to continue shooting the party the following day as Gemma was wearing the same black dress two days in a row.

Will he be getting some of your candy Arg looks tired after a long weekend of filming

Passion: The couple appeared lost in their own world as they shared a kiss

Gemma and Arg's car park clinch comes after a rocky few weeks for the couple.

The bubbly blonde admitted she was a 'wreck' when she saw Arg pictured with two brunettes in a car last week, but now believes Arg's insistence it was purely innocent.

She wrote in her Closer magazine column: 'When I woke up to see pictures of him driving back from Faces nightclub in the early hours with two brunettes, I burst into tears and Tweeted him, accusing him of cheating.

Embraceable you: The couple appear to be back on track following Gemma's meltdown over Arg being photographed in a car with two brunettes

'I was so angry, I just wanted to publicly out him… He said the girls were just a mate's cousins and he promised never to be photographed with other women in the early hours again.'

Gemma has warned Arg to never cheat on her after he previously admitted being unfaithful to TOWIE co-star and long-term love Lydia Bright.

Now TOWIE has finished filming, Gemma is heading back to No 1 Boot Camp to lose some weight, before she and Arg book their first couple holiday together.

She wrote in her column: 'We're stronger than ever – we're still planning to go to Vegas or Dubai when filming finishes.'

That's better: James spotted in his suit on Saturday night as they started filming the party